Students were asked to create a model of stem cell differentiation. The diagram shown is the model that they created and used to help them explain cell differentiation. Based on the model, what process is referred to as self-renewal?
A. Mitosis
B. Differentiation
C. Meiosis
D. Specialization
Answers
Answer:
D. Specialization
Explanation:
The cell is changing its form to fill out a certain task.
Related Questions
Earth’s path around the sun is ____________. Which word best completes the sentence? triangular elliptical random circular
Answers
Answer:
i think the answer would be circular.
Explanation:
because it moves around the sun in a circle.
Answer:
elliptical
Explanation:
Which of the following is the best definition of a population?
O all of the above
O multiple different species living together in a given area
O organisms of the same species living in a given area
O the interaction between the living and nonliving factors in an environment
Answers
Answer:
All of the above----------
The correct option is c. organisms of the same species living in a given area. A population consists of organisms of the same species living and interacting in a given area. An example is all angelfish in a specific part of the ocean. Multiple populations can exist within an ecosystem, each representing a single species.
The best definition of a population is organisms of the same species living in a given area.A population consists of all the individual organisms of the same species that live and interact in the same area. For example, all of the angelfish living in the same area of the ocean make up the angelfish population. Different populations inhabit an ecosystem, but each population includes only one species.Thus the correct option is c. organisms of the same species living in a given area
explain how oxygen and nutrients are transported by ocean currents
Answers
Answer:
Currents play a huge role in marine productivity, through a process called upwelling. ... When currents upwell, or flow up to the surface from beneath, they sweep vital nutrients back to where they're needed most. Nowhere is the link between ocean circulation and productivity more evident than around Antarctica.
Explanation:
describe the weather on three days this week
Answers
Answer:
Monday: It was cloudy
Tuesday: It was windy but clear
Wednesday: It was raining all day
The Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent.
What is the probability the offspring will be heterozygous for this trait
PLEASE HELP NOWWWW
Answers
Answer: 50% chance (2/4)
Explanation:
Answer:
50% probability
can the behavior of a material of substance be considered a physical property
Answers
Answer:
Physical properties are those attributes of a material that can be observed and/or measured without changing the composition or identity of that material. Examples of such properties include color, smell, freezing point, melting point, viscosity, opacity. density, solubility, polarity, texture and many others.
Now if the behavior of a material is inherent to that material, and is an attribute that can be observed or measured without effecting any chemical change in that material, then it may very well be considered a physical property of that material.
For example if a particular element or material melts at 40 degrees centigrade, this is a behavior of that element and is considered a physical attribute.
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Explanation:
1 point
Fungi used to be classified in the same kingdom as plants. In time,
scientists observed a key characteristic that required reclassification. What
was that characteristic? *
Answers
Final answer:
Fungi were once classified as plants, but scientists observed a key characteristic that required reclassification. The cell walls of fungi are made of chitin instead of cellulose, and fungi absorb nutrients from other organisms.
Explanation:
Fungi were once classified as plants due to their similarities with plants such as immobility, having cell walls, and growing in soil. However, scientists observed a key characteristic that required reclassification: the cell walls of fungi are made of chitin instead of cellulose, which is found in plant cell walls. Additionally, fungi absorb nutrients from other organisms, while plants can make their own food through photosynthesis.what 2 things make a ionic bond????
Answers
Elements that are metal and elements that are nonmetal together creates an ionic bond. Explanation:
Answer:
Krypton and Lithium are most likely to form an Ionic Bond
Explanation:
For a single Bond it is possible to define an Ionic Bond when the electronegativity difference between the two atoms of the bond is greater than 2,0.
we appear to be solid but which of the following components is critical for all living things
Answers
Answer:
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen
5. Phosphorus
6. Sulfur
Explanation:
Purifying the Five Elements of Our Being. Everything in nature is made up of five basic elements: earth, water, fire, air, and space.
____________________ is a relationship between two organisms in which ONE species benefits by hunting, killing and eating the other organism.
Answers
Just need to match these I posted this question and accidentally put the subject as Spanish
Answers
Answer:
1. nonliving matter that living organisms need to survive
2. bacteria
3. plants
4. animals
Explanation:
How can substances be transported across a membrane against their concentration gradient?
Answers
Answer: To move substances against a concentration or electrochemical gradient, a cell must use energy.
Explanation:
This occurs because During active transport, substances move against the concentration gradient from an area of low concentration to an area of high concentration which is a “active” progress which requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Substances can be moved across a membrane against their concentration gradient using active transport. It requires ATP energy and uses proteins in the cell membrane as pumps.
Explanation:Substances can be transported across a membrane against their concentration gradient through a process called active transport. In this process, substances move from an area of low concentration to an area of high concentration, which is against the natural diffusion process. Some substances cannot pass through the cell membrane passively and for these, the cell uses active transport which requires energy, usually in the form of ATP (Adenosine Triphosphate). Proteins in the cell membrane, called transport proteins or pumps, are utilized to push these materials against their gradient.
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Structures for protection to the environment is an example of
Answers
Answer: a protective wall and a dam
Explanation:
A triangle points down, 25 is below the triangle, 5 is to the right of the triangle, one dot and 26 is above the triangle. Next to the triangle is a solid circle with a single white line down the middle. Lines in the shape of an F extend from the top of the circle, slightly left of the white line. 1010 is to the right with negative 6 below it. Fill in the blank to complete each statement. The air pressure is millibars. The temperature is degrees. The dew point is degrees
Answers
Answer:
1010
26
25
Explanation:
Answer:
1,010
26
25
Explanation:
Taking the assignment rn
you people have a nice day alright?
pros and cons about georthermal technology
Answers
Answer:
i think
Explanation:
bc i know
Efficient (300- 500% compared to 90% of the best furnaces). Electricity is still needed to operate heat pumps.
Geothermal energy is a renewable resource as long as the Earth exists. Geothermal energy using wells requires an incredible usage of water.
Use this link to explore the niche of a giraffe, then answer the question provided.
Describe the niche of the giraffe.
Answers
Answer:
Giraffes have a special niche in the African savanna. They are able to reach a six-foot band of foliage beyond the reach of all other terrestrial browsers except elephants. Their long tongue is useful for grasping leaves in the crowns of trees.
Explanation:
graze
foliage
maintain
open
woodland
oxpecker
parasite
mutualistic relationship
African Savannah is the largest biome situated in the Kalahari region of South Africa. The animals and plants found in African Savannah are zebra, giraffe, and several mammals.
The giraffes have a special niche in the ecosystem of the African savannah.
Giraffes are the tallest organisms, which allow them to feed directly on the foliage and leaves present at a great height. The other animals and small organisms are unable to reach such height.
The Giraffes have long tongues, which make them pull leaves from the branches of the trees.
Thus, giraffes also show a mutualistic relationship with ticks and have a special ecological niche in the savanna.
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which is the best definition for the underlined word _transformation ______________
Answers
Answer:
The genetic alteration of a cell resulting from the direct intake, placement and expression of exogenous genetic material from its surroundings and taken in through the cell membrane
Explanation:
Answer:
a thorough or dramatic change in form or appearance
Explanation:
Which statement describes competition in an environment
Answers
Answer:
its c i did the test a day ogo :)
Explanation:
After a major fire, grasses that are pioneer species start to grow in the ashy soil. The following list includes some of the ways that the grasses affect the ecosystem.
absorbing nutrients from the soil
absorbing water from the soil
providing food for animals
preventing erosion
Which of the items on the list contribute to ecological succession in the burned area?
A.
absorbing nutrients from the soil and absorbing water from the soil
B.
absorbing nutrients from the soil and providing food for animals
C.
preventing erosion and absorbing water from the soil
D.
preventing erosion and providing food for animals
Answers
Answer:
D
Explanation:
It seems like that helps start it up. Not sure but hope it helps!!
Answer:
d its right
Explanation:
How does climate change threaten food availability for a growing population
Answers
Deep ocean currents are a result of:
A) Density
B) Earth’s Rotation
C) Global Wind Patterns
D) All of the above
Answers
How are pollen and egg cells different than most other plant cells?
Answers
Answer:
Fertilization, which is the union of sperm and egg, occurs deep within the flower after pollination. When a pollen grain lands on the stigma, it generates a tiny tube tipped with sperm. The tube fits into a conduit called a style in the female pistil.
Explanation:
Pollen grains and egg cells differ from most plant cells by being specialized haploid gametophytes with features that ensure successful fertilization and seed formation for plant reproduction.
Pollen grains and egg cells, which represent the male and female gametophytes respectively, differ from most other plant cells in several ways. Pollen grains are male gametophytes containing a few cells and are specialized for transport to female reproductive organs. This is possible due to features like a protective coat that prevents desiccation, and, in some cases, structures such as air sacs that facilitate their movement towards the ovule. The whole structure is adapted to ensure successful fertilization without dependence on water. Egg cells are found within the female gametophyte, which also contains additional cell types like the synergids and antipodal cells.
The key characteristic of pollen and egg cells is their ploidy level: they are haploid (1n), containing a single set of chromosomes, unlike the diploid (2n) cells found in most of the plant body (sporophyte generation). This difference is crucial for sexual reproduction, as the fusion of a pollen grain’s sperm cell with an egg cell will result in a diploid zygote, from which a new sporophyte will develop. Seed formation then follows, encapsulating the zygote to provide protection, nourishment, and a mechanism for dormancy until growth conditions are optimal.
why are traits that are helpful in one environment be harmful in another?
Answers
Traits that are helpful in one environment can be harmful in another because evolution is a process of adaptation to specific environmental conditions. Organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
What is evolution?Evolution is a slow and gradual process that occurs over many generations. It involves changes in the genetic makeup of populations of organisms over time. These changes are brought about by natural selection, which is the process by which certain traits become more or less common in a population based on their effects on survival and reproduction. Natural selection acts on the variation that exists within a population, and this variation is often due to genetic differences between individuals.
Hence, traits that are helpful in one environment can be harmful in another because evolution is a process of adaptation to specific environmental conditions. Organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
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Traits can be advantageous or disadvantageous based on the specific environment they exist in. This is a result of adaptation and evolution, influenced by factors like food availability and mutation which can have different impacts in different conditions. Overall, the concept of 'survival of the fittest' still holds, meaning that individuals who are most adapted to their environment are most likely to survive.
Explanation:Traits which are advantageous in one environment can be disadvantageous in another due to the nature of adaptation and evolution. Traits are often the result of evolutionary pressures and adapt a species to specific environmental conditions. For instance, consider the case of finch beaks. The variations in their beaks enabled adaptation to food availability in specific environments, with large bills being advantageous in one environment and disadvantageous in another. *
Mutations can also play a role in how helpful or harmful a trait may be. Some mutations are helpful, improving an individual's survival and reproduction chances in certain environments, while they can be harmful or neutral in another. An example is the mutation for black colouration in peppered moths - it increased their survival during the Industrial Revolution due to the soot-blackened cities, but in areas that were not industrialized, the mutation may have made them more conspicuous to predators.
In conclusion, whether a trait is beneficial or harmful can greatly depend on the environmental context, reinforcing the concept of survival of the fittest - those individuals most adapted to their environment are more likely to survive and pass their traits to the next generation
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The Himalaya mountains formed from the collision of the India plate and Eurasian plate each carrying continental crust. what type of mountains are the Himalayas?
Answers
Answer:
Fold Mountains
Explanation:
"The rugged, soaring heights of the Himalayas, Andes, and Alps are all active fold mountains." - google
Answer:The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today. 225 million years ago India was a large island situated off the Australian coast and separated from Asia by the Tethys Ocean.
Explanation:
Which of the following supports the argument that genetic selection improves animal welfare?
Genetic selection can alter physical traits.
Genetic selection can boost food production.
Genetic selection can produce heartier crops.
Genetic selection can modify aggressive behaviors.
Answers
Answer:
it would be the first one
Explanation:
because the other ones talk about food, crops, and behavior.
Answer:
The CORRECT answer is "Genetic selection can modify aggressive behaviors."
Explanation:
trust.
5 things I learned from the amoeba sisters biological levels in biology
Answers
Answer:
zenuts
Explanation:
,prokaryotes and eukaryotes, all living things have cells,some thigs that grow are not living there are two types of cells animal cells and plant cells
Each year as the weather gets cold, gray whales swim over 10,000 miles from arctic waters south to coastal areas of northern Mexico. After their young are born, they return to the Arctic.
The whales are responding to an stimulus_______.
This response is an example of _______.
Answers
Answer:
External, Migration
Explanation:
just trust me
Answer:
external, migration
Explanation:
Just answered it.
Which of the following accurately describes one of the possible steps in testing soil PH?
A.) Water and baking soda are added to the soil
B.) A blend of baking soda and vinegar are added to the soil.
C.) The soil is washed and drained thoroughly before testing.
D.) The soll is dried completely.
Answers
The correct step for testing soil pH is to wash and drain the soil thoroughly before testing. Baking soda and vinegar, which react with each other, are not used for pH testing. The pH level indicates the soil's acidity or basicity, determined by the concentration of hydrogen ions.
C is correct
Explanation:The question at hand involves the process of determining the pH level of soil, which is a measure of its acidity or basicity. One of the possible steps in testing soil pH could involve adding substances to the soil and observing the reaction. However, when mixing vinegar, which contains acetic acid, and baking soda, which is a base, you would witness a reaction that would not be helpful for soil pH testing, as it would create a new substance rather than help determine the pH of the soil.
Instead, a proper step for testing soil pH would be to wash and drain the soil thoroughly before testing to remove any contaminants that may affect the pH reading. After cleaning, one would typically use a pH testing tool such as litmus paper or a digital pH meter to measure the soil's acidity or basicity. The presence of high concentrations of hydrogen ions would indicate an acidic pH (below 7), while low concentrations would indicate a basic pH (above 7).
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Final answer:
The correct step in soil pH testing is option C) the soil is washed and drained thoroughly before testing; adding substances like baking soda or vinegar, which alter the soil's pH, is not part of the correct procedure.
Explanation:
The correct step in testing soil pH is C) The soil is washed and drained thoroughly before testing. This is because the pH measurement requires a sample where the soil particles are in suspension with a liquid, typically water, so that the glass electrode can measure the hydrogen ion activity in the solution. The soil should not be dried completely as it needs to be in a state that allows for hydrogen ion exchange. Adding water to the soil makes a water-soil suspension which can then be tested for pH. Adding substances like baking soda (a base) or vinegar (an acid) to the soil would alter its pH and thus would not be part of a proper soil pH testing procedure.
If vinegar were added to baking soda, there would be a chemical reaction that produces carbon dioxide gas and water, resulting in a solution with a neutral pH of around 7. However, this reaction is not relevant to the proper method of soil pH testing, which does not involve baking soda or vinegar.
PLEASE HELP QUICK I GIVE 20 POINTS!!
The Plant Cell
function for each organelle?
organelle:
golgi complex
nuclear membrane
nucleolus
The Animal Cell
function for each organelle?
organelle:
cytoplasm
golgi complex
lysosome
rough endoplasmic reticulum
smooth endoplasmic reticulum
Answers
Nuclear membrane- The nuclear membrane keeps DNA inside the nuclear and protects it from materials in the cytoplasm.
Nucleolus- The nucleolus makes ribosomal submits from proteins and ribosomal RNA. (Makes proteins in the cell)
Animal Cells:
Cytoplasm- Cytoplasm is responsible for giving the cell its shape and keeping the organelles in their place.
Golgi complex- The Golgi complex processes and bundles macromolecules.
Nuclear membrane- The nuclear membrane is a double membrane layer that separates the contents of the nucleus from the rest of the cell.
Nucleolus-The nucleolus plays a vital role in making proteins in the cell.
The Golgi complex is involved in modifying and packaging proteins and lipids in both plant and animal cells. The nuclear membrane regulates substance flow in and out of the nucleus, and the nucleolus assembles ribosomes in plant cells. In animal cells, the cytoplasm provides medium for reactions, lysosomes digest waste, RER synthesizes and modifies proteins, and SER synthesizes lipids and stores calcium ions.
Explanation:The functions of the organelles you've inquired about are crucial for the life of the cell. In a plant cell, the Golgi complex modifies, sorts, and packages proteins and lipids for storage or transport out of the cell. The nuclear membrane, also known as the nuclear envelope, encloses the nucleus, providing a barrier that regulates the flow of substances into and out of the nucleus. The nucleolus within the nucleus is responsible for ribosome assembly, which are then transported out to the cytoplasm for protein synthesis.
In an animal cell, cytoplasm is the gel-like substance enclosed within the cell membrane, providing a medium for chemical reactions and helping to support the cell's structure. The golgi complex functions similarly to that in plant cells. Lysosomes contain digestive enzymes that break down waste materials and cellular debris. The rough endoplasmic reticulum (RER) is studded with ribosomes and is the site for protein synthesis and modification, while the smooth endoplasmic reticulum (SER) is involved in the synthesis of lipids, detoxification, and calcium ion storage.
What is the current theory about the formation of the solar system?
I need a answer ASAP!!! My test is TIMED
A big bang occurred in the solar system as a result of a fusion reaction. All the matter in the solar system that had been clumped together was shattered and sent flying. As new pieces of matter connected, all the celestial bodies of the solar system were formed.
The solar system began as a cloud of dust and gas that condensed, forming a bulging middle and an outer disk. The bulging middle of the cloud became the sun, and the rest of the dust and gas formed the planets, orbiting the sun in the same plane.
About 14 billion years ago, several supernova events scattered all the known elements throughout the galaxy. The magnetic elements were attracted to each other and formed the early celestial bodies that eventually became the planets of the solar system.
The area of the universe that was to become the solar system went through a period of vast expansion as a result of rapid radioactive decay that left behind clouds of dust and gases. The excess clouds and gases were used to form the various parts of the solar system.
Answers
Answer:i cant tell you the answer dont want to give you wrong
Explanation: